M. Antczak, “Class Conflict of the Lodz Proletariat (1905–1939) according to memoirs of Bałuty Communist Activists. Part I: Activism in the SDKPiL (Social Democracy of the Kingdom of Poland and Lithuania) and PPS-Lewica (Polish Socialist Party-Left) until the restoration of independent Poland”, SHSG, vol. 25, pp. 161–182, Dec. 2022.